xworm | 188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

General

Target

SolaraX.exe
Size

82KB
MD5

b201ce5dcb58284da7a5ef6294418e56
SHA1

27573051f80debfd74e1a72d27cfd29f58c76d7e
SHA256

188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed
SHA512

f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c
SSDEEP

1536:D2wgD0/WhgBpRCn3wtSD+bQ6QqTMj34Al6G4tIzOasNnP6UO:ywkeWQCn1+bQdjrytuOa6Sz

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:36623

fax-scenarios.gl.at.ply.gg:36623

Attributes

Install_directory
%AppData%
install_file
SolaraX.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2080-1-0x0000000001290000-0x00000000012AA000-memory.dmp	family_xworm
behavioral1/files/0x0004000000004ed7-33.dat	family_xworm
behavioral1/memory/1664-35-0x00000000012D0000-0x00000000012EA000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1484	powershell.exe
2804	powershell.exe
2812	powershell.exe
2540	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SolaraX.lnk	SolaraX.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SolaraX.lnk	SolaraX.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	SolaraX.exe
1608	SolaraX.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SolaraX = "C:\\Users\\Admin\\AppData\\Roaming\\SolaraX.exe"	SolaraX.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1484	powershell.exe
2804	powershell.exe
2812	powershell.exe
2540	powershell.exe
2080	SolaraX.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	SolaraX.exe
Token: SeDebugPrivilege	1484	powershell.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	2540	powershell.exe
Token: SeDebugPrivilege	2080	SolaraX.exe
Token: SeDebugPrivilege	1664	SolaraX.exe
Token: SeDebugPrivilege	1608	SolaraX.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2080	SolaraX.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1484	2080	SolaraX.exe	31
PID 2080 wrote to memory of 1484	2080	SolaraX.exe	31
PID 2080 wrote to memory of 1484	2080	SolaraX.exe	31
PID 2080 wrote to memory of 2804	2080	SolaraX.exe	33
PID 2080 wrote to memory of 2804	2080	SolaraX.exe	33
PID 2080 wrote to memory of 2804	2080	SolaraX.exe	33
PID 2080 wrote to memory of 2812	2080	SolaraX.exe	35
PID 2080 wrote to memory of 2812	2080	SolaraX.exe	35
PID 2080 wrote to memory of 2812	2080	SolaraX.exe	35
PID 2080 wrote to memory of 2540	2080	SolaraX.exe	37
PID 2080 wrote to memory of 2540	2080	SolaraX.exe	37
PID 2080 wrote to memory of 2540	2080	SolaraX.exe	37
PID 2080 wrote to memory of 1564	2080	SolaraX.exe	39
PID 2080 wrote to memory of 1564	2080	SolaraX.exe	39
PID 2080 wrote to memory of 1564	2080	SolaraX.exe	39
PID 1448 wrote to memory of 1664	1448	taskeng.exe	42
PID 1448 wrote to memory of 1664	1448	taskeng.exe	42
PID 1448 wrote to memory of 1664	1448	taskeng.exe	42
PID 1448 wrote to memory of 1608	1448	taskeng.exe	44
PID 1448 wrote to memory of 1608	1448	taskeng.exe	44
PID 1448 wrote to memory of 1608	1448	taskeng.exe	44

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\SolaraX.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraX.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1484
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2804
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SolaraX" /tr "C:\Users\Admin\AppData\Roaming\SolaraX.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1564

C:\Windows\system32\taskeng.exe
taskeng.exe {CD345A71-B3E7-4640-85C3-AB0B6FE74E3B} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1664
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
8259b57f45febc1c7a18bb3105284354

SHA1
c1998016571378c0c9fa42589dcf5a12ce067b3b

SHA256
de288ff6f7ab647fabdcdfdde05036441fa39605735b9edee1f432ffc009cc88

SHA512
b94f1bfe5b78608a2d2eedd154537fd5725801d1342517431d93f54c20ae8971279941b40ccd4f654ef8ba762c1d420490c9386a484f721934c2a5f2668acd19

Download Submit
C:\Users\Admin\AppData\Roaming\SolaraX.exe

Filesize
82KB

MD5
b201ce5dcb58284da7a5ef6294418e56

SHA1
27573051f80debfd74e1a72d27cfd29f58c76d7e

SHA256
188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

SHA512
f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c

Download Submit
memory/1484-6-0x0000000002CF0000-0x0000000002D70000-memory.dmp

Filesize
512KB

Download
memory/1484-7-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/1484-8-0x0000000002000000-0x0000000002008000-memory.dmp

Filesize
32KB

Download
memory/1664-35-0x00000000012D0000-0x00000000012EA000-memory.dmp

Filesize
104KB

Download
memory/2080-0-0x000007FEF5293000-0x000007FEF5294000-memory.dmp

Filesize
4KB

Download
memory/2080-1-0x0000000001290000-0x00000000012AA000-memory.dmp

Filesize
104KB

Download
memory/2080-31-0x000007FEF5293000-0x000007FEF5294000-memory.dmp

Filesize
4KB

Download
memory/2804-14-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2804-15-0x0000000002350000-0x0000000002358000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads